Several documentation files were missing a final newline character.
This change adds them to adhere to POSIX conventions and improve
compatibility with various text-processing tools. It also helps
to create cleaner diffs in the future.
* Added NuGet package creation docs.
Moved the information about creating local NuGet packages from the general build instructions into its own document, and tried to flesh out the information in there.
* Restore the link.
As suggested in PR review.
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Co-authored-by: Julien Lebosquain <julien@lebosquain.net>